TWI802408B - Iron core top mechanism and iron core winding equipment - Google Patents

Abstract

The invention provides an iron core alignment mechanism and iron core winding equipment. The iron core alignment mechanism includes: a pair of jacking shafts, one end of the pair of jacking shafts forms a joint end fixedly connected with a pair of top bearing seats, and the other end forms a a driving end; the pair of jacking shafts can be rotated by the driving end being driven by a transmission mechanism; A pair of ejector rods, pivotally arranged on the pair of top rotating shafts, can be driven to move back and forth with a resisting portion against the iron core; the pair of ejector rods are provided with positioning grooves, and the positioning grooves are pivotally sleeved on the pair of top bearing seats On a positioning pin on the top; by this way, the deviation can be reduced when the iron core is clamped and aligned.

Description

Iron core top mechanism and iron core winding equipment

The present invention relates to a jacking mechanism and winding equipment, especially to an iron core jacking mechanism and an iron core winding that are used to push the other end of the iron core clamped by the clamp against the other end of the iron core in the process of winding the iron core. equipment.

Press, the iron core generally used for winding wire usually has a flange at the end of the wire and a flange at the end of the wire at both ends of the core. When winding, it can be divided into different types according to the different winding equipment. Single-axis winding and multi-axis winding, in general single-axis winding equipment, such as the patent case of "Winding Method and Winding Device" with the announcement number I591668, the flange of the wire-entry end is often placed in a fixture In the clamping mouth, because the flange part of the outlet end is in a suspended state, it is usually pushed against by a pair of top mechanisms at the outer end of the flange part of the outlet end. This kind of top mechanism is usually pivoted on a fixed seat and can A rotating shaft that is indirectly driven by a motor to rotate through a belt. One end of the rotating shaft forms a bearing seat, and a propping piece made of relatively wear-resistant material is fixed at the front end of the supporting seat. The propping piece corresponds to the iron core The outer end of the flange part of the outlet end is suspended in the air and against it, and the motor that drives the rotating shaft rotates also drives the clamp to rotate synchronously, so when the wire is to be wound, the clamp and the front end of the rotating shaft are pressed The two ends of the iron core rotate synchronously against each other, and when the winding and welding of the wire ends are completed, the rotating shaft will be pulled back by a pulling-driven cylinder in conjunction with the front end of the pushing piece, so that After the clamp is released, the core with finished coiled wire is available for extraction or drop collection.

In general multi-axis winding equipment, such as the "Winding Method and Device" patent case with announcement number I558647, it often uses a turntable that can be rotated intermittently to set up multiple workstations, so that the fixture is set on the turntable and rotates to the corresponding position. A work station with a counter-topping mechanism outside the turntable. The counter-topping mechanism is driven to move against the slide rail between the lower part and the machine table so that a propping member at the front end of a rotating shaft on the upper part is against one end of the iron core. When the mechanism moves against the lower slide rail, at the same time, a coupling is engaged with the coupling that is linked to the clamp, so that the motor that drives the rotating shaft with a belt in the top mechanism can synchronously drive the clamp through the coupling It rotates synchronously with the rotating shaft, and after winding and welding the wire ends, the rotating shaft will be driven back by the entire jacking mechanism on the lower slide rail to move backward together with the abutting piece, and after the clamp is released, the This core with the finished coiled wire is extracted or dropped for collection.

In the above-mentioned prior art, in the single-axis winding equipment, when the contacting member at the front end of the rotating shaft is pulled back by a pulling-driven cylinder, because the rotating shaft is indirectly driven by the motor through a belt, the pulling rotating shaft moves backward. When the cylinder is pulled backward, the belt embedded in the rear end of the rotating shaft will be pulled backward at the same time. Under long-term high-frequency operation, the inclined component force of the belt being pulled backward will cause the central axis of the rotating shaft to deviate. , when the iron core is clamped against the top of the fixture, there will be a center deviation between the two; and in the multi-axis winding equipment, although there is no cylinder that pulls the rotating shaft back, the drive of the whole top mechanism slides below. Under the operation of moving back and forth at high frequency, the alignment mechanism will be easy to loose and the central axis of the rotating shaft will be easily shifted. Therefore, how to reduce the deviation when clamping and aligning the iron core is an issue to be solved!

Therefore, the object of the present invention is to provide an iron core alignment mechanism that solves at least one shortcoming of the prior art.

Another object of the present invention is to provide an iron core winding device provided with the above-mentioned iron core pushing mechanism.

The core alignment mechanism according to the object of the present invention includes: a pair of jacking shafts, one end of which is formed as a coupling end and is fixedly connected with a pair of top bearing seats, and the other end forms a driving end; the pair of jacking shafts is driven by the The end is driven by a transmission mechanism and can be rotated; a pair of ejector rods, which are pivotally arranged on the pair of ejector shafts, can be driven to move back and forth with a resisting part against the iron core; the pair of ejector rods are provided with positioning grooves , the positioning groove is pivotally sleeved on a positioning pin on the pair of top supports.

According to another object of the present invention, the iron core winding equipment is provided with the above-mentioned iron core alignment mechanism.

In the iron core alignment mechanism and winding equipment of the embodiment of the present invention, due to the abutment against the flange portion of the wire outlet end of the iron core, it is separated from the wire outlet flange portion of the iron core. When pushing, the pair of jacking shafts maintains the original position and does not move with the jacking part. Therefore, in the single-axis winding equipment, the pushing part frequently operates to disengage or release the iron core, which will cause the pair of jacking shafts to lose weight. The degree of deviation from the joint shaft of the fixture due to loosening and vibration of the pivoting condition can be reduced. In the multi-axis winding equipment, it is not necessary to use the drive to drive the entire top mechanism below because of the disengagement or loosening of the iron core by the abutment part. The slide rails perform high-frequency forward and backward movement operations, so the jacking mechanism will not be loosened and the central axis of the jacking shaft and the fixture shaft will not be offset.

Please refer to Figures 1 to 3. The embodiment of the present invention is illustrated by taking the iron core clamping module as shown in the figure as an example. The iron core clamping module is provided with: A fixed seat 1, the fixed seat 1 is integrally formed with a first pivotal part 11 and a second pivotal part 12 spaced apart in the X-axis, the first pivotal part 11 and a second pivotal part The fixing seat 1 between 12 is recessed downward to form a platform 13, and one side of the platform 13 is recessed into an operating section 14 in the Y-axis, between the first pivoting part 11 and a second pivoting part 12 A winding section 15 is formed above the operating section 14; the first pivoting portion 11 is provided with a first pivot hole 111 in the X-axis direction, and the second pivoting portion 12 is provided with a second pivoting hole 111 in the X-axis direction. Pivot hole 121, the first pivot hole 111 and the second pivot portion 121 are on the same central axis; A clamp mechanism 2, the clamp mechanism 2 is provided with a clamp rotating shaft 21 pivotally arranged in the first pivot hole 111 of the first pivotal part 11, and one end of the clamp rotating shaft 21 located in the winding section 15 is provided with a The clamp carrier 211 carries a clamp 22, which is located at the other end of the winding section 15 to form a driving end 23 which is linked by a belt 24 and a shaft wheel 25; A fixed jaw 222 and a movable jaw 223, the fixed jaw 222 is provided with a hanging wire body 224 for winding the wire, the fixed jaw 222 and the front end of the movable jaw 223 of the clamp 22 are jointly provided with a jaw 225 is used for clamping an incoming wire end flange 31 of an iron core 3; the movable jaw 223 is moved by a dial 26 so that the jaw 225 is used for clamping operation, and the dial 26 is controlled by the relative winding section The driving member 27 constituted by a pneumatic cylinder on the other side of the first pivotal part 11 of 15 acts on the X-axis displacement operation; A pair of jacking mechanisms 4, please refer to Figures 4-5 at the same time, the pair of jacking mechanisms 4 is provided with a pair of jacking shafts 41 pivoted in the second pivot hole 121 of the second pivoting part 12 in the X-axis One end of the pair of top rotating shafts 41 located in the winding section 15 forms a coupling end 411 and is fixedly connected with a pair of top bearing seats 42, and the other end opposite to the winding section 15 forms a driving end 412; the pair of top rotating shafts 41. The driving end 412 is driven by a transmission mechanism 43 to rotate. The transmission mechanism 43 includes a driving wheel 431, a belt 432, a tension pulley 433 and a driving member 434 formed by a motor. The belt 432 is wound around Connect and link the pair of top rotating shafts 41 and the driving wheel 431, the driving wheel 431 is driven by the driving member 434, and the belt 432 is stretched and adjusted by the tension wheel 433; please refer to Figure 1 at the same time, the transmission mechanism 43 The driving member 434 is simultaneously connected with the shaft wheel 25 of the clamping mechanism 2 through a linkage rod 435 located in the X-axis of the fixing base 1 .

Please refer to FIG. 6 , the pair of top bearing seats 42 to which the pair of jacking shafts 41 are fixed are provided with two positioning pins 421 erected in the Z axial direction at intervals in the X axis, and the pair of top bearing seats 42 are stacked on top of each other. There are two positioning holes 422 corresponding to a drill base 423 for the two positioning pins 421. The front end of the drill base 423 is protruded with a placement part 424. The top of the drill base 423 is on both sides of the Y-axis at a distance from each other. Each is provided with a seat 425, and an X-axis slideway 426 is formed between the two seats 425. The two seats 425 protrude along the entire long side toward the upper edge of the slideway 426. There is a retaining edge 427; a shaft hole 413 located on the central axis is provided in the pair of jacking shafts 41, and a pair of jacking rods 44 are pivoted in the shaft hole 413 with a shaft part 441, and can be driven to reciprocate in the X-axis Displacement, one end of the shaft part 441 towards the pair of top bearing seats 42 is located outside the shaft hole 413 and is provided with a coupling part 442, and the coupling part 442 can be selectively disassembled and separated or connected to a top part 443 by means of a pin pivot. The shaft part 441 protrudes from one end of the driving end 412 of the pair of jacking shafts 41 to the outside of the shaft hole 413 and is provided with a flange-shaped buckle part 444; the propping part 443 is a rectangular flat long strip The bottom edges of the long sides on both sides respectively form a limiting part 4431 extending along the entire long side, and the limiting parts 4431 on both sides of the abutting member 443 are respectively supported by the two seats on both sides. The retaining edge 427 of 42 presses against the limit, so that the abutting member 443 can only be displaced in the X-axis in the slideway 426 and cannot be dislodged upward in the Z-axis; The center protrudes obliquely to form a propping part 4432, and the other end is provided with an oblong pivot hole 4433, and the long axis of the oblong pivot hole 4433 is arranged along the Y axis; The upper surface of the abutting member 443 is provided with two long oval positioning grooves 4434 spaced apart in the X axial direction. On the two positioning pins 421 on the carrier 42, a plurality of thread-hanging bodies 4435 are provided on the upper surface of the resisting member 443 for pulling and hanging the wound wire; the pivot hole 4433 of the resisting member 443 is controlled by the The pair of push rods 441 are pivotally connected by pins and thereby are synchronously linked by the pair of push rods 441 .

Referring to Fig. 3, 6, an elastic member 445 composed of a spring is pivotally sleeved on the outer periphery of the pair of ejector rods 44 between the resisting member 443 and the shaft hole 413 of the pair of jacking shafts 41, and the elastic member 445 provides a tension to make The abutting member 443 has a driving force to abut against the abutting portion 4432 to abut against an outlet flange portion 32 of the iron core 3 on the placement portion 424 at the front end of the drill base 423 .

Please refer to FIG. 7 , the pair of push rods 441 are driven by the driver 45 formed by a pneumatic cylinder with the buckle part 444 , and the driver 45 is connected with the buckle part 444 by a reverse "C"-shaped buckle 451 fastened, the driving part 45 links the buckle part 444 with the fastening part 451, so that the pair of ejector rods 441 can only make a reciprocating linear displacement in the X axis, The rotation of the buckle part 444 and the driving end 412 of the pair of ejector rods 441 is not restricted. When the pair of ejector rods 441 are linked to make the abutting part 4432 perform a reciprocating linear displacement, the pair of ejector shafts 41 are not linked to reciprocate. Linear displacement; the distance of the pair of push rods 441 to be moved back and forth by the joint fastener 451 is respectively the distance between the positioning pin 421 and the two ends of the long axis of the long ellipse of the positioning groove 4434, and the distance can be passed through A threaded depth of a screw member 453 screwed between the output rod end 452 of the driving member 45 and the buckle portion 444 in the coupling member 451 is finely adjusted.

When the embodiment of the present invention is implemented, when the iron core 3 is brought to the jaw 225 of the clamp 22 in the clamp mechanism 2 and the inlet flange 31 corresponds to the jaw 225 to prepare for feeding and winding The buckle portion 444 at one end of the pair of ejector rods 44 in the pair of ejector shafts 41 of the ejector mechanism 4 will be driven to move forward by the driving member 45, and the abutment portion at the front end of the abutment member 443 will be linked. 4432 pushes against the flange portion 32 of the outgoing end of the iron core 3, so that the flange portion 31 of the incoming end of the iron core 3 fully enters the clamping opening 225, and continues with the pair of jacking shafts 41. The abutting portion 4432 at the front end of the abutting member 443 abuts and supports the flange portion 32 of the outlet end; in the movable jaw 223, the jaw 225 is clamped by the driver 27 driving the dial 26 After the operation of the iron core 3, the driving member 434 is linked with the shaft wheel 25 of the clamp mechanism 2 with the linkage rod 435 located in the fixed seat 1, so that the clamp 22 is rotated, and the driving member 434 is also at the same time The drive wheel 431 is driven to drive the drive end 412 of the pair of jacking shafts 41 through the belt 432. Since the limit parts 4431 on both sides of the abutting member 443 are respectively pressed against by the two seats 425 on both sides. limit, so the pair of jacking shafts 41 will use the pair of jacking seats 42 to link the jacking member 443 and the pair of jacking rods 44 pivotally connected to rotate synchronously with the clamp 22 to carry out the winding operation; After the winding, the pair of jacking shafts 41 stops rotating and the wire ends are welded, the driving member 45 will buckle and pull the buckle portion 444 of the pair of jacking rods 44 with the fastening piece 451, so that the pair of jacking pins 44 are linked to the jacking rods 44. The abutting piece 443 is moved backward to disengage from the abutment against the flange portion 32 of the outlet end of the iron core 3; The driver 27 will also drive the dial 26 to make the jaw 225 loosen the iron core 3, so that the iron core 3 is picked up or dropped and collected by itself; Displacement in the slideway 426 will not cause the rotation of the pair of jacking shafts 41 to be linked, so at this time the driving end 412 of the pair of jacking shafts 41 and the associated belt 432 and the driving member 434 are all in a stopped state and will not Affected by the displacement of the pair of push rods 44 and the abutting member 443!

Please refer to Fig. 8, when the embodiment of the present invention is used in multi-axis winding equipment, the iron core clamping module can be set on a fixed seat 5 on the turntable T that can be rotated intermittently, and a first pivot of the fixed seat 5 A plurality of clamp mechanisms 6 are arranged on the setting part 51, and a plurality of counter-top mechanisms 7 are arranged on a second pivotal part 52, so that the driving end 62 formed by one end of the clamp rotating shaft 61 of each clamp mechanism 6 is jointly wound by a belt 63. Set and move with a shaft wheel 64, make the driving end 72 formed by the top rotating shaft 71 one end of each top-to-top mechanism 7 jointly be wound around by a belt 73 and be interlocked with a shaft wheel 74, borrow a shaft wheel 74 and the shaft wheel 64 The linkage rod (not shown in the figure, can refer to the linkage rod 435 in Fig. 1) interlocks, and the end of the shaft wheel 74 is provided with a coupler 75 for the drive member 76 formed by an external motor to be selectively connected and driven; 76 is selectively connected to the coupler 75 for driving, so in order to avoid when the driver 76 is selectively disengaged from the coupling, the driving end 62 and the driving end 72 are loosely rotated, resulting in a jaw 65 of the clamp mechanism 6 and the pair of clamps. An abutting member 77 of the jacking mechanism 7 is deflected and fails to correspond to each other, and an elastic member 81 composed of a spring is arranged below a clamp carrier 66 of the clamp mechanism 6 and a pair of top carriers 78 of the pair of jacking mechanisms 7 A supporting member 8 that acts to keep the upper driving force, the supporting member 8 can be driven upwards against the bottom edge of the clamp carrier 66 and the pair of top carrier 78, so that the clamp carrier 66 and the pair of top carriers The top carrier seat 78 does not deflect when the driver 76 is disconnected from the coupler 75, or the downward displacement makes it allow the clamp carrier 66 and the pair of top carrier seats 78 to be free when the driver 76 is connected to the coupler 75. turn; The both sides of this fixing seat 5 are respectively provided with fixing portion 53, and a moving rod 9 passes through below each of this clamp carrier seat 66 of a plurality of this clamp mechanism 6, and at the position of a movable jaw 67 corresponding to each of this clamp mechanism 6 One side convex is respectively provided with a rod-shaped abutting member 91, and the moving rod 9 can be driven by a driving member 92 for Y-axis displacement, so that each of the abutting members 91 corresponds to the clamp mechanism 6 The movable jaw 67 abuts against it to perform the operation of opening and closing the jaw 65 .

In the iron core alignment mechanism and winding equipment of the embodiment of the present invention, due to the abutting portion 4432 of the outgoing line end flange portion 32 of the iron core 3, it is separated from the outgoing line of the iron core 3 When the end flange part 32 pushes against, the pair of jacking shafts 41 maintains the original position and does not move along with the pushing part 443, so in the single-axis winding equipment, the pushing part 4432 disengages or loosens the iron core 3 Frequent operations can reduce the degree of deviation between the central axis of the abutting portion 4432 and the clamp shaft 21 caused by the loosening and vibration of the pivoting condition of the pair of jacking shafts 41. In multi-axis winding equipment, due to the The frequent operation of the contact part 4432 on the iron core 3 disengagement or loosening does not need to use the driving unit 4 to move back and forth at a high frequency on the lower slide rail, so it will not cause the top mechanism 4 to loosen and make the The jacking shaft 41 is offset from the central axis of the fixture shaft 21 .

But what is described above is only a preferred embodiment of the present invention, and should not be used in this way. The implementation scope of the present invention is limited, that is, all simple equivalent changes and modifications made according to the patent scope of the present invention and the description of the invention are still within the scope covered by the patent of the present invention.

1: Fixed seat 11: First Pivotal Department 111: first pivot hole 12: Second pivotal department 121: Second pivot hole 13: Platform 14: Operating range 15: winding interval 2: Fixture Mechanism 21: Fixture shaft 22: Fixture 221: Elastic parts 222: fixed jaw 223: Movable jaw 224: hanging wire body 225: Jaw 26: Dial 27: Driver 3: iron core 31: The flange part of the entry end 32: Flange part of outlet end 4: top mechanism 41: Top shaft 411: Connection end 412: Drive end 413: shaft hole 42: Top carrier 421: positioning pin 422: positioning hole 423: drill seat 424: Placement Department 425: seat 426: slideway 427: Retaining edge 43: transmission mechanism 431: Drive wheel 432: belt 433: tension wheel 434: Driver 435: linkage rod 44: pair ejector 441: shaft part 442: Joint 443: Top Arrival 4431: limit part 4432: Top Arrival 4433: Pivot hole 4434: positioning slot 4435: hanging wire body 444: Buckle 445: Elastic 45: Driver 451: Fasteners 452: Output rod end 453: screw 5: Fixed seat 51: First Pivotal Department 52: Second Pivotal Department 53: fixed part 6: Fixture Mechanism 61: Fixture shaft 62: Drive end 63: belt 64: axle wheel 65: Jaw 66: Fixture carrier 67: movable jaw 7: Top mechanism 71: Top shaft 72: Drive end 73: belt 74: axle wheel 75: Coupling 76: Driver 77: Top Arrival 78: Top-to-top carrier 8: Top supporting piece 81: elastic piece 82: Driver 9: Move rod 91: Arrival piece 92: Driver

Fig. 1 is a three-dimensional schematic diagram of the iron core clamping module in the embodiment of the present invention. Fig. 2 is a schematic diagram of the fixture mechanism in the embodiment of the present invention. Fig. 3 is a schematic diagram of the clamp and the abutting member jointly clamping the top iron core in the embodiment of the present invention. Fig. 4 is a schematic diagram of the jacking mechanism in the embodiment of the present invention. Fig. 5 is a schematic diagram of the transmission mechanism in the top-aligning mechanism in the embodiment of the present invention. Fig. 6 is a three-dimensional exploded schematic view of various components on the countertop carrier of the countertop shaft in the embodiment of the present invention. Fig. 7 is a schematic diagram of the buckle part of the pair of push rods being pulled by the fastening part at the front end of the driving part in the embodiment of the present invention. Fig. 8 is a schematic diagram of a multi-axis winding device used in an embodiment of the present invention.

41: Top shaft 411: Connection end 412: Drive end 413: shaft hole 42: Top carrier 421: positioning pin 422: positioning hole 423: drill seat 424: Placement Department 425: seat 426: slideway 427: Retaining edge 44: pair ejector 441: shaft part 442: Joint 443: Top Arrival 4431: limit part 4432: Top Arrival 4433: Pivot hole 4434: positioning slot 4435: hanging wire body 444: Buckle 445: Elastic

Claims (11)

An iron core alignment mechanism, comprising: a pair of jacking shafts, one end of the pair of jacking shafts is provided with a pair of jacking seats, and the other end forms a driving end; the pair of jacking shafts is driven by a transmission mechanism and can be used as Rotation; a pair of ejector rods, pivoted on the pair of ejector shafts, can be driven to move back and forth with a resisting portion against the iron core; the pair of ejector rods is provided with a positioning groove, and the positioning groove is pivoted on the pair of ejector On a positioning pin on the carrier. According to claim 1, the iron core alignment mechanism, wherein, the pair of jacking shafts is provided with a shaft hole on the central axis, and the pair of ejector rods are pivoted in the shaft hole with a shaft portion; the shaft portion faces One end of the driving end of the pair of jacking shafts protrudes out of the shaft hole and is provided with a buckle part, and a driving part is buckled and linked with the buckle part by a fastening part. As described in Claim 1, the iron core alignment mechanism, wherein, the ejector rod is provided with a shaft part, and the shaft part is provided with a coupling part outside a shaft hole toward the end of the pair of top bearing seats, and the coupling part can be pivoted. Selectively detach, separate or connect a propping piece provided with the propping part. As described in Claim 3, the iron core alignment mechanism, wherein, the abutting member is in the shape of a rectangular flat strip, and the bottom edges of the long sides on both sides of the abutting member are provided with limiting parts, and the limiting parts are respectively formed Extend along the entire length. As described in Claim 3, the iron core alignment mechanism, wherein, the positioning groove is oblong and is arranged on the abutting member, and the distances for the pair of ejector rods to move back and forth are respectively the positioning pin and the positioning groove elongate The distance between the sides of the major axis of the shape. As described in Claim 3, the iron core alignment mechanism, wherein, the upper surface of the resisting member is provided with a plurality of hanging wires for the coiled wire to draw and hang; one end of the resisting member is provided with an oblong pivot The long axis of the long ellipse of the pivot hole is arranged along the Y axis, and the pivot hole is pivotally connected by the pair of push rods with pins and thereby synchronously linked by the pair of push rods. According to claim 3, the iron core alignment mechanism, wherein, an elastic member is pivotally sleeved on the upper outer periphery of the pair of ejector rods between the resisting member and the pair of ejecting shafts, and the elastic member provides a tension so that the resisting member has The driving force to resist in the direction of the resisting portion. An iron core winding equipment is provided with an iron core alignment mechanism as described in any one of claims 1 to 7. The iron core winding equipment as described in claim 8 includes an iron core clamping module, and the iron core clamping module is provided with: a fixing seat, and the fixing seat is provided with a first pivot part and a second pivot A winding section is formed between the first pivoting part and a second pivoting part; a clamp mechanism is provided with a clamp rotating shaft pivoted on the first pivoting part, and the clamp rotating shaft is located at the winding One end of the section is provided with a fixture carrier to carry a fixture, which is located at the other end opposite to the winding section to form a driving end, and the fixture is provided with a jaw for clamping a wire-entry end flange of an iron core; the top-facing mechanism It is pivoted on the second pivoting part. The iron core winding equipment as described in Claim 9, wherein a plurality of clamp mechanisms are set on the first pivotal part, and a plurality of top-to-top mechanisms are set on a second pivotal part, and a clamp of the clamp mechanism A supporting piece is arranged under the carrier and the pair of top-carrying seats of the top-setting mechanism, and the supporting piece can be driven to push up against the lower edge of the fixture carrier and the pair of top-carrying seats, so that the fixture carrier can The pair of top carriers does not deflect when a driving element is disconnected from a coupler. The iron core winding equipment as described in Claim 9, wherein, both sides of the fixed seat are respectively provided with fixed parts, and a moving rod passes through the bottom of each clamp carrier of a plurality of the clamp mechanisms, and is placed on the corresponding clamp mechanism One side is respectively provided with a rod-shaped abutment piece, and the moving rod can be driven by a driving piece so that each abutment piece abuts against the corresponding clamp mechanism to open and close the jaw.

Images